- Sas Merge Left Join
- Sas Merge Statement
Dear everyone, I tried to merge two datasets, using 'proc sql'. Two datasets have two common variables: ID and Sharetype. Below is my code: proc sort data=Institution by ID Sharetypr; proc sort data=Stock; by ID sharetype; run; proc sql; create table InstitutionStock as select L., R. from Institu.
Creates a Boolean variable that indicates whether the data setcontributed data to the current observation.
- Merging with a BY statement enables you to match observations according to the values of the BY variables that you specify. Before you can perform a match-merge, all data sets must be sorted by the variables that you want to use for the merge. In order to understand match-merging, you must understand three key concepts.
- Jan 31, 2019 Merge two data sets in SAS To merge two or more data sets in SAS, you must first sort both data sets by a shared variable upon which the merging will be based, and then use the MERGE statement in your DATA statement.
|Use with the SET, MERGE, MODIFY, and UPDATEstatements only.|
names the new variable whose value indicateswhether that input data set contributed data to the current observation. Pdf merger secure. Within the DATA step, the value of the variable is 1 if the data set contributedto the current observation, and 0 otherwise.
Specify the IN= data set option in parenthesesafter a SAS data set name in the SET, MERGE, MODIFY, and UPDATE statementsonly. Values of IN= variables are available to program statements during theDATA step, but the variables are not included in the SAS data set that isbeing created, unless they are assigned to a new variable.
When you use IN= with BY-group processing, andwhen a data set contributes an observation for the current BY group, the IN=value is 1. The value remains as long as that BY group is still being processedand the value is not reset by programming logic.
In this example, IN= creates a new variable, OVERSEAS,that denotes international flights. The variable I has a value of 1 when theobservation is read from the NONUSA data set. Otherwise, it hasa value of 0. The IF-THEN statement checks the value of I to determine whetherthe data set NONUSA contributed data to the current observation. If I=1, thevariable OVERSEAS receives an asterisk (*) as a value.
Sas Merge Left Join
BY-GroupProcessing in SAS Language Reference: Concepts
Sas Merge Statement
|Previous Page||Next Page||Top of Page|